| public static AssertNameValid ( String name ) : void | ||
| name | String | |
| return | void | |
/// <summary>
/// 创建一个文件夹
/// </summary>
/// <param name="name"></param>
public void CreateDirectory(String name)
{
VFS.AssertNameValid(name);
INode inode = vfs.AllocateINode(1, 2333);
if (!dir.Add(name, new INodeDirectory(vfs, inode)))
{
throw new Exception("创建文件夹失败");
}
}
/// <summary>
/// 重命名文件或文件夹
/// </summary>
/// <param name="oldName"></param>
/// <param name="newName"></param>
public void Rename(String oldName, String newName)
{
VFS.AssertNameValid(oldName);
VFS.AssertNameValid(newName);
if (!dir.Contains(oldName))
{
throw new Exception("文件或文件夹未找到");
}
if (dir.Contains(newName))
{
throw new Exception("新文件名与现有文件或文件夹名称冲突");
}
if (!dir.Rename(oldName, newName))
{
throw new Exception("重命名失败");
}
}
public File(VFSCore vfs, String path, FileMode fileMode)
{
this.vfs = vfs;
var directory = VFS.GetPathDirectory(path);
var name = VFS.GetPathName(path);
VFS.AssertNameValid(name);
INodeDirectory dir = INodeDirectory.Resolve(vfs, directory);
if (dir == null)
{
throw new Exception("无法访问目录");
}
switch (fileMode)
{
case FileMode.CreateNew:
if (dir.Contains(name))
{
throw new Exception("文件已存在");
}
CreateFile(dir, name);
break;
case FileMode.Create:
if (dir.Contains(name))
{
OpenFile(dir, name);
inode.Resize(0);
}
else
{
CreateFile(dir, name);
}
break;
case FileMode.Open:
if (!dir.Contains(name))
{
throw new Exception("文件未找到");
}
OpenFile(dir, name);
break;
case FileMode.OpenOrCreate:
if (dir.Contains(name))
{
OpenFile(dir, name);
}
else
{
CreateFile(dir, name);
}
break;
case FileMode.Truncate:
if (!dir.Contains(name))
{
throw new Exception("文件未找到");
}
OpenFile(dir, name);
inode.Resize(0);
break;
case FileMode.Append:
if (!dir.Contains(name))
{
CreateFile(dir, name);
}
else
{
OpenFile(dir, name);
position = inode.data.sizeByte;
}
break;
default:
throw new ArgumentException();
}
}